I played this game for some time and I'm sure some jumps are impossible. The theme is good the idea is awesome! Gives me the same vibe as Flappy Bird. The audio is broken and can be heard only from the left headphone speaker.
Yeah, I guess the difficulty is pretty high. Everybody seems to tell me that. I also know about the audio problem, but I don't think I'll ever work on the game again. Thanks for feedback!